LCD0821-GW Matrix Orbital, LCD0821-GW Datasheet - Page 13
LCD0821-GW
Manufacturer Part Number
LCD0821-GW
Description
LCD Character Display Modules White Background Blue Text
Manufacturer
Matrix Orbital
Datasheet
1.LCD0821-V.pdf
(51 pages)
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2.5 Protocol Select Jumpers
display module between RS-232, TTL, and I
with solder jumps on the 232 jumpers. In order to place the display module in I
remove the solder jumps from the 232 jumpers and then place them on the I2C jumpers. The display will
now be in I
to change the display to TTL mode, simply remove the zero ohm resistors from the 232 or I
solder them to the TTL jumpers.
Matrix Orbital
The Protocol Select Jumpers, pictured below in
2
C mode and have a default slave address of 0x50 unless it has been changed. Similarly, in order
WARNING If connecting a relay, be sure that it is fully clamped using
a diode and capacitor in order to absorb any electro-motive force (EMF)
which will be generated.
Figure 14: General Purpose Output
2
C protocols. As a default, the jumpers are set to RS-232 mode
LCD0821
figure 15
, provide the means necessary to toggle the
-
+
GND
MAX: 20 mA, +5Vdc
2
C mode you must first
2
C jumpers and
9
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